Rodent repellent device of random working frequency

Abstract

A rodent repellent device of random working frequency is disclosed, which comprises: an application-specific integrated circuit (ASIC); a deterring module, electrically connected to the ASIC, capable of emitting a wave emission selected from the group consisting of an ultrasonic wave, a seismic wave and a sound, being used for repelling rodents; and a power source, electrically connected to the ASIC, for providing power to the ASIC and the deterring module. Wherein the ASIC further comprises: an internal precision oscillator; a center processing unit (CPU); a wake-up module, being employed as an activation means for enabling the rodent repellent device to have randomized lasting time of wave emission and randomized intermission between two consecutive wave emissions; a read-only memory (ROM), for storing a program controlling the randomization of each intermission between two consecutive wave emissions and the lasting time of each wave emissions; and a random-access memory (RAM).

1. A rodent repellent device of random working frequency, comprising:
 an application-specific integrated circuit (ASIC), further comprising:
 an internal precision oscillator; 
 a center processing unit (CPU); 
 a wake-up module, being employed as an activation means for enabling the rodent repellent device to have randomized lasting time of wave emission and randomized intermission between two consecutive wave emissions; 
 a read-only memory (ROM), for storing a program controlling the randomization of each intermission between two consecutive wave emissions and the lasting time of each wave emissions; and 
 a random-access memory (RAM); 
 a deterring module, electrically connected to the ASIC, capable of emitting a wave emission selected from the group consisting of an ultrasonic wave, a seismic wave and a sound, the deterring module being configured to be located underground so as to repel burrowing rodents; and 
 a power source, electrically connected to the ASIC, for providing power to the ASIC and a buzzer/motor module. 
 
 
     
     
       2. The rodent repellent device of  claim 1 , wherein a main program, a pseudo random generator and system data are stored in the read-only memory. 
     
     
       3. The rodent repellent device of  claim 2 , wherein the pseudo random generator is used as the program of controlling the randomization of each intermission between two consecutive wave emissions and the lasting time of each wave emissions, and is programmable with respect to various requirement. 
     
     
       4. The rodent repellent device of  claim 1 , wherein the deterring module capable of emitting ultrasonic sound waves is a buzzer. 
     
     
       5. The rodent repellent device of  claim 1 , wherein the deterring module capable of emitting seismic waves is a motor. 
     
     
       6. The rodent repellent device of  claim 1 , wherein the center processing unit further comprises a program counter, a register, an arithmatic and logic unit (ALU) and an input/output controller. 
     
     
       7. The rodent repellent device of  claim 6 , wherein the input/output controller is electrically connected to the deterring module.